ObjMatrix  Changes On Branch trunk

Changes In Branch trunk Excluding Merge-Ins

This is equivalent to a diff from e597cc80e1 to e597cc80e1

2021-04-29
00:32
Adjust to ObjFW changes Leaf check-in: e597cc80e1 user: js tags: trunk
2020-10-31
19:37
Adjust to ObjFW changes check-in: 6b6fe6d802 user: js tags: trunk